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Paracervical Block for Pain Control

2014-07-23 21:09:43 | BioPortfolio

Summary

Many woman undergoing a surgical abortion receive a paracervical nerve block for pain reduction, in which lidocaine (a numbing medication) is injected around the cervix. These injections numb the cervix and possibly the lower part of the uterus. However, the injection can be uncomfortable and it is not well known whether it is effective in reducing pain. The purpose of this study is to determine the level of pain women experience with a surgical abortion and the effect that paracervical block might have on that pain

Description

We expect to have 120 women complete this study, between study sites at OHSU's Center for Women's Health and Planned Parenthood Columbia Willamette in Portland, OR. Every participant will still receive the standard oral medication for pain (ibuprofen) and anxiety (lorazepam). Eligible subjects will be at least 18 years of age, less than 11 weeks pregnant and have already decided to have a surgical abortion.

The primary outcome evaluated will be pain reported at time of cervical dilation. We will assess pain at various time points (including secondary outcomes) immediately upon completion of the respective step and pain and satisfaction 30 min post operatively.

Study Design

Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Subject), Primary Purpose: Diagnostic

Conditions

Pain With Surgical Abortion

Intervention

Paracervical Block, No Paracervical Block

Location

Planned Parenthood Columbia Willamette
Portland
Oregon
United States
97212

Status

Not yet recruiting

Source

Oregon Health and Science University

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-23T21:09:43-0400

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PubMed Articles [10405 Associated PubMed Articles listed on BioPortfolio]

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Medical and Biotech [MESH] Definitions

Interruption of sympathetic pathways, by local injection of an anesthetic agent, at any of four levels: peripheral nerve block, sympathetic ganglion block, extradural block, and subarachnoid block.

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Impaired or delayed impulse conduction between the right and left HEART ATRIA. Advanced interatrial blocks are often associated with arrhythmias (e.g., ATRIAL FLUTTER; and ATRIAL FIBRILLATION), direct conduction block via the Bachmann's bundle and concomitant left atrial enlargement. Syndrome of advanced interatrial block associated with SUPRAVENTRICULAR TACHYCARDIA is referred to as Bayes syndrome.

A local anesthetic of the ester type that has a slow onset and a short duration of action. It is mainly used for infiltration anesthesia, peripheral nerve block, and spinal block. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1016).

A form of heart block in which the electrical stimulation of HEART VENTRICLES is interrupted at either one of the branches of BUNDLE OF HIS thus preventing the simultaneous depolarization of the two ventricles.

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